By
admin on September 12th, 2009
Iron
is an essential element that plays a key role in normal human physiology. In humans, iron combines with proteins in the blood that are responsible for the transportation of oxygen through the bloodstream.
It also plays a regulatory role in cell growth and differentiation. When humans are deficient in iron (anemic) oxygen delivery to tissues is hampered, leading to fatigue, confusion, and decreased immunity.
Iron supplements
are often given to individuals who for some reason or another are low in Iron concentrations in their blood.
Iron deficiency occurs when the balance of iron that is taken into the body is less than what is required by the body for normal function. The process of iron deficiency is usually slow because the body will first try to compensate for the imbalance by tapping into the forms of iron storage within the body. Once the iron storage forms are depleted, blood hemoglobin levels begin to decrease leading to iron deficiency anemia.
The risk for iron toxicity can run very high if someone is taking iron supplementation that does not need it. This is because iron is lost from the body at a very slow rate. Remember to keep any iron supplement away from children. As little as 200mg has been reported to kill a child.
Source:
http://www.articlesbase.com/supplements-and-vitamins-articles/iron-supplements-a-review-486679.html
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By
admin on July 21st, 2009
Iron: What is it?
Iron is an integral part of many proteins and enzymes that maintain good health. In humans, iron is an essential component of proteins involved in oxygen transport. It is also essential for the regulation of cell growth and differentiation. A deficiency of iron limits oxygen delivery to cells, resulting in fatigue, poor work performance, and decreased immunity. On the other hand, excess amounts of iron can result in toxicity and even death. Iron can used for many purpose:
- Treatment for patients with anemia which commonly known as Blaud’s pills. It was named after P. Blaud of Beaucaire, the French physician who introduced it.
- A food supplement intended to provide nutrients that are missing in a a person’s diet.
- Medicine to treat iron-deficiency anemia.
What foods provide iron?
There are two forms of dietary iron: heme and nonheme. Heme iron is derived from hemoglobin, the protein in red blood cells that delivers oxygen to cells. Heme iron is found in animal foods that originally contained hemoglobin, such as red meats, fish, and poultry. Iron in plant foods such as lentils and beans is arranged in a chemical structure called nonheme iron. This is the form of iron added to iron-enriched and iron-fortified foods. Heme iron is absorbed better than nonheme iron, but most dietary iron is nonheme iron. You will find iron in Chicken liver, Oysters, Beef, Clams, cereal, Oatmeal, and Soybeans.
Pregnancy increase the need for iron
Nutrient requirements increase during pregnancy to support fetal growth and maternal health. Iron requirements of pregnant women are approximately double that of non-pregnant women because of increased blood volume during pregnancy, increased needs of the fetus, and blood losses that occur during delivery. If iron intake does not meet increased requirements, iron deficiency anemia can occur. Iron deficiency anemia of pregnancy is responsible for significant morbidity, such as premature deliveries and giving birth to infants with low birth weight.
Iron supplements
Iron supplementation is indicated when diet alone cannot restore deficient iron levels to normal within an acceptable timeframe. Supplements are especially important when an individual is experiencing clinical symptoms of iron deficiency anemia. The goals of providing oral iron supplements are to supply sufficient iron to restore normal storage levels of iron and to replenish hemoglobin deficits.
Source: http://ods.od.nih.gov/factsheets/iron.asp
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